Can Stem Cell Therapy Help Sciatica? What the Research Shows
Researchers are interested in mesenchymal stem cells for disc-related pain because MSCs release signals that can modulate inflammation, which plays a role in irritated nerve roots. However, most clinical trials have studied chronic low back pain from disc degeneration rather than sciatica specifically:
- A randomized trial of 24 patients with lumbar disc degeneration found faster and greater improvement in pain and disability with donor bone marrow MSCs than with a sham procedure over one year (Noriega et al., Transplantation, 2017).
- The larger RESPINE trial of 114 patients found no significant difference between MSC injection and a sham procedure at 12 months—74% versus 69% of patients met the response threshold—although the procedure was safe (Pers et al., Annals of the Rheumatic Diseases, 2024).

Together, these results mean that stem cell therapy for sciatica should be viewed as an option that is still under study. Renovo discusses this evidence with every patient before recommending any treatment.



